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Both calculators run independently — change the inputs on either side to compare results.

Ohm's Law Calculator

Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Essential for electronics hobbyists, electricians, and engineering students troubleshooting circuits.

Voltage (V)

Current (A)

Resistance (Ω)

Calculate

Fill in the required fields to see your result.

Electrical

Ohm's Law Solver (V = IR)

Solves Ohm's Law for voltage, current, or resistance — pick the unknown and enter the other two values. Built on V = I × R, the foundational relationship of every electrical circuit.

Solve For

Voltage (leave 0 if solving for it) (V)

Current (leave 0 if solving for it) (A)

Resistance (leave 0 if solving for it) (Ω)

Result

Key differences

	Ohm's Law Calculator	Ohm's Law Solver (V = IR)
Category	Electrical	Electrical
Inputs required	4	4
Result	Calculated Value (W)	Result
What it does	Solve for voltage, current, resistance, or power in any DC circuit using Ohm's Law. Essential for electronics hobbyists, electricians, and engineering students troubleshooting circuits.	Solves Ohm's Law for voltage, current, or resistance — pick the unknown and enter the other two values. Built on V = I × R, the foundational relationship of every electrical circuit.